I'm sorry, I don't know the exact content of this novel as it seems to be rather specific. It might be about love ('ishq' means love in some languages) and perhaps a story where the lovers don't want their love to be ruined ('barbad na kar' could imply not ruining something).
I'm not sure exactly where you can find this specific novel. You could try checking local libraries, they often have a wide range of novels. Maybe some specialized bookstores that deal with novels from different regions or cultures might also have it.
You can start by checking local bookstores. They might have it in stock or be able to order it for you. Some large chain bookstores have a wide range of novels, including less - known ones.
I'm sorry, I haven't read this novel specifically. It might be a relatively unknown or regional novel. You could try searching for it in local libraries or specialized bookstores.
Since I have no prior knowledge of what'mere ban jao' refers to in terms of a full story, it could be a personal anecdote, a folktale from a particular culture, or even a made - up story. Maybe it's a story about a journey to a place called 'Mere Ban' where something significant happened. But again, this is all speculation without more information.
Since I'm not familiar with this novel, you could look for reviews or summaries online. Maybe there are book clubs or online forums where fans of this type of literature discuss it. You might find out about its plot, characters, and the overall theme that way.
There isn't enough information here to accurately tell the 'kyun utthe dil chhod aaya' real story. It might be related to a personal experience, a piece of literature, or a cultural anecdote. Without more context, it's hard to say.